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A308491 as a simple table

na(n)
01
11
265
319876
416895763
530685843321
6102018812632786
7560682901512212459
84738032814084465062121
958320000513552476843995786
101002620283226568243192938115197
1123280221638971518379191182864465213
12710336441472841166799952152725333251616

[1,1,65,19876,16895763,30685843321,
 102018812632786,560682901512212459,
 4738032814084465062121,58320000513552476843995786,
 1002620283226568243192938115197,
 23280221638971518379191182864465213,
 710336441472841166799952152725333251616]